Free MCP Security, Networking & IT Infrastructure Questions and Answers — Questions and Answers
Question 1: Which protocol is used to securely transfer files over a network?
- FTP
- Telnet
- SFTP (Correct answer)
- HTTP
Correct answer: SFTP
SFTP (SSH File Transfer Protocol) is used to securely transfer files over a network. Unlike standard FTP, SFTP encrypts both the data and the authentication information by leveraging the Secure Shell (SSH) protocol. This encryption protects against eavesdropping and unauthorized access, making it a preferred choice for sensitive file transfers where data confidentiality and integrity are paramount.
Question 2: What is the primary purpose of a firewall in a network?
- To monitor and optimize server performance
- To protect against unauthorized access and cyber threats (Correct answer)
- To encrypt user files
- To provide wireless access to users
Correct answer: To protect against unauthorized access and cyber threats
The primary purpose of a firewall in a network is to act as a security barrier, monitoring and controlling incoming and outgoing network traffic based on predefined security rules. It protects against unauthorized access, malicious attacks, and various cyber threats by filtering data packets and blocking suspicious connections. This ensures that only legitimate traffic is allowed to pass, safeguarding the network's integrity.
Question 3: Which encryption protocol is commonly used to secure VPN connections?
- WEP
- IPSec (Correct answer)
- HTTP
- Telnet
Correct answer: IPSec
IPSec (Internet Protocol Security) is a suite of protocols commonly used to secure VPN (Virtual Private Network) connections. It provides strong authentication and encryption for data packets as they travel across public networks, ensuring confidentiality, integrity, and authenticity of communications between VPN endpoints. This makes IPSec a robust choice for creating secure tunnels over insecure networks.
Question 4: Which command-line utility in Windows is used to display the current IP configuration of a computer?
- ping
- tracert
- ipconfig (Correct answer)
- nslookup
Correct answer: ipconfig
The `ipconfig` command-line utility in Windows is used to display the current TCP/IP network configuration of a computer. It provides essential information such as the IP address, subnet mask, default gateway, and DNS servers. This information is crucial for network troubleshooting, verifying network connectivity, and understanding how a computer is configured on a network.
Free MCP Security, Networking & IT Infrastructure Questions and Answers
Which protocol is used to securely transfer files over a network?